We report on highly stretchable piezoelectric structures of electrospun PVDF-TrFE nanofibers. fabricated nanofibrous yarns via twisting their ribbons. Our results show that the process not only increases failure strain but also overall strength and toughness. The achieved a remarkable energy to up 98 J/g. Through overtwisting process, we polymeric coils out twisted stretched ∼740% strain. This enhancement in mechanical properties is likely induced by increased interactions between...

With the ever-growing demand for renewable energy sources, harvesting from natural resources has gained much attention. Energy sources such as heat and mechanical motion could be easily harvested based on pyroelectric, thermoelectric, piezoelectric effects. The otherwise wasted in environment can utilized self-powered micro nano devices, wearable electronics, which required only µW–mW power. This article reviews pyroelectric with an emphasis recent developments devices at micro/nanoscale....

Smart textiles are envisioned to make a paradigm shift in wearable technologies directly impart functionality into the fibers rather than integrating sensors and electronics onto conformal substrates or skin devices. Among smart materials, piezoelectric fabrics have not been widely reported, yet. Piezoelectric can be used for mechanical energy harvesting, thermal harvesting through pyroelectric effect, ferroelectric applications, as pressure force sensors, motion detection, ultrasonic...

Infiltration of a molten metal phase into ceramic scaffold to manufacture metal–ceramic composites often involves high temperature, pressure, and expensive processes. Low-cost processes for fabrication can substantially increase their applications in various industries. In this article, electroplating (electrodeposition) as low-cost, room-temperature process is demonstrated infiltration (copper) lamellar (alumina) scaffold. Estimation shows that low energy consumption process....

Abstract Rewritable information record materials usually demand not only reversibly stimuli‐responsive ability, but also strong mechanical properties. To achieve one photochromic hydrogel with super‐strong strength, hydrophobic molecule spiropyran (SP) has been introduced into a copolymer based on ion‐hybrid crosslink. The hydrogels exhibit both photoinduced reversible color changes and excellent properties, i.e., the tensile stress of 3.22 MPa, work tension 12.8 MJ m −3 , modulus elasticity...

Stimuli-responsive hydrogel actuators have attracted tremendous interest in switches and microrobots. Based on N-isopropylacrylamide (NIPAM) monomers with LCST phase separation photochromic molecule spiropyran which can respond to ultraviolet light H+, we develop a novel multistimuli-responsive co-polymer anisotropic bilayer hydrogel, undergo complex deformation behavior under environmental stimuli. Diverse bending angles were achieved based inhomogeneous swelling. By controlling the...

Hybrid composites of layered brittle‐ductile constituents assembled in a brick‐and‐mortar architecture are promising for applications requiring high strength and toughness. Mostly, polymer mortars have been considered as the ductile layer composites. However, low stiffness polymers does not efficiently transfer shear between hard ceramic bricks. Theoretical models point to metals more efficient mortar layer. infiltration into scaffold is non‐trivial, given wetting ceramics. The authors...

The recent widespread use of microplastics (MPs), especially in pharmaceuticals and personal care products (PPCPs), has caused significant water pollution.

A simple one-pot synthesis strategy that prepares necklace-like MOF@CNTs. CNTs as a “lead wire” with substantial aspect ratios were used to induce the self-assembly growth of MOFs “beads” along CNTs' longitudinal axis.

A metal–ceramic composite comprised of ≈82 vol% alumina (Al 2 O 3 ) and ≈18 nickel (Ni) is fabricated via co‐assembly micro‐platelets with Ni particles using the freeze‐casting process followed by spark plasma sintering (SPS). The SPS processing a custom‐designed temperature‐pressure history result in formation elongated phase between lamellar‐ceramic phase. Results mechanical characterization shows that inclusion improves flexural strength more than 47% compared to lamellar ceramic....

We investigated the photocatalytic property of etched iron‑aluminum layered double hydroxide (LDH) composites using urea-modified biochar (N-BC) carrier to degrade para-aminobenzoic acid (PABA), a refractory organic pollutant. The prepared FeAl-LDH@FeSx-N-BC composite exhibited excellent performance, attributed enhanced photogenerated charge-carrier separation by LDH and improved comparative surface areas doped N-BC. photocatalytically degraded 96 % PABA. performance was affected solute...

Understanding the role of ductile polymer phase in mechanical behavior bioinspired hybrid composites is an important step toward development materials with damage tolerant properties. Herein, authors report on fabrication and characterization a lamellar composite by incorporation semicrystalline into freeze casted scaffold. The elastic modulus ductility can be changed more than three 55 times, respectively, addition to 42 folds decrease toughness, thermal annealing post‐processing, after...

This paper is concerned with resilient sliding mode control (SMC) of an unmanned marine vehicle (UMV) system in a finite-time stability (FTS) framework, where the networks designed for communication between UMV and land-based station are subject to denial-of-service (DoS) attacks actuators affected by stochastic failures. First, Takagi–Sugeno (T-S) fuzzy approach proposed model nonlinear UMV, actuator failure phenomenon modeled as continuous Markov process. Then, new SMC method ensure FTS...

This work investigates the causal mechanism behind effect of chatbot personification and persuasion strategies on users' perceptions donation likelihood. In a 2 (personified vs. non-personified chatbot) x (emotional logical strategy) between-subjects experiment (N=76), participants engaged with that represented non-profit charitable organization. The results suggest interaction personified evokes perceived anthropomorphism; however, it does not elicit greater willingness to donate. fact, we...

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to “Low-Cost Manufacturing of Metal–Ceramic Composites through Electrodeposition Metal into Ceramic Scaffold”Jiacheng HuangJiacheng HuangMore by Jiacheng Huang, Soheil DaryadelSoheil DaryadelMore Daryadel, and Majid Minary-Jolandan*Majid Minary-JolandanMore Minary-Jolandanhttp://orcid.org/0000-0003-2472-302XCite this: ACS Appl. Mater. Interfaces 2021, 13, 8, 10665Publication Date...